The hardware was assembled by connecting the Arduino UNO R4 WiFi, the PZEM 004T, the current transformer, and the OLED ...
It's a solved problem, but I actually prefer a simple web UI.
Volos Projects recently showcased an easy-to-reproduce, inexpensive DIY ESP32-S3 Internet radio based on a Waveshare ESP32-S3-LCD-1.54 development board ...
There needs to be a future in which cities provide opportunities for all, with access to basic services, energy, housing, transportation and more.